I'd be very hesitant about altering the Python trigger.
There's VERY few times where this really needs to be done, and the chances of ruining a hard to replace trigger make it a last resort.
Truth is, the stock factor trigger pull is almost always near-perfect, and you get a lighter pull by "tuning" the spring and doing some light polishing of the action.
In other words, the Python trigger's actual mechanics of take up, length of travel, and over-travel are near perfect.
All that's needed is to make the pull a little lighter, WITHOUT going too light and having either "push-off" or too light a pull.
Due to the complexity of the old style Colt action, the less you do, the better.
Buying a stoning jig set is money wasted unless you're going to be working on lesser quality Colt's like the Official Police or old model Trooper.
The Python was originally intended to be a Super-quality target revolver, and it was always built to that standard.
Most improvement of the trigger pull is in double action, and the single action is about as good as possible right from the factory.
I'd read the Kuhnhausen manual, and do a LITTLE polishing of the action parts, like the hand and "tune" the spring for a lighter pull.
Be aware, go too far with the spring and you'll get ignition failures in double action, but the single action will usually be OK.